Walking cane



FIG. 1 is a perspective view of the walking cane; and

FIG. 2 is a front plan view thereof; and

FIG. 3 is rear plan view thereof; and

FIG. 4 is a left side view thereof; and,

FIG. 5 is a right side view thereof.

The broken lines on the sole of the shoe in FIG. 2 form no part of the claimed design. The broken lines on the top portion of the shoe represent stitching. 

CLAIM The ornamental design for the walking cane, as shown and described. 